static void final_cleanup(void)
{
#if SFX_LEVEL>=ARJSFXV
file_close(aistream);
aistream=NULL;
file_close(atstream);
atstream=NULL;
#else
if(atstream!=NULL)
fclose(atstream);
#endif
#if SFX_LEVEL>=ARJSFXV
if(tmp_tmp_filename!=NULL&&!keep_tmp_file&&tmp_tmp_filename[0]!='\0')
file_unlink(tmp_tmp_filename);
#else
if(tmp_tmp_filename[0]!='\0')
file_unlink(tmp_tmp_filename);
#endif
#if SFX_LEVEL>=ARJSFXV&&(TARGET!=UNIX||defined(HAVE_FCLOSEALL))
fcloseall();
#endif
if(quiet_mode)
freopen(dev_con, m_w, stdout);
#if SFX_LEVEL>=ARJSFXV
if(ferror(stdout))
msg_fprintf(stderr, M_DISK_FULL);
if(debug_enabled&&strchr(debug_opt, 't')!=NULL)
{
ticks=get_ticks()-ticks;
msg_cprintf(0, M_FINAL_TIMING, ticks);
}
#endif
}
void stopdnsmasq() {
// Stopping dnsmasq
writelog(kill_processes_by_name((char *)"dnsmasq"),(char *)"Stopping dnsmasq");
if (file_exists((char*)"/data/data/android.tether.usb/var/dnsmasq.pid") == 0) {
file_unlink((char*)"/data/data/android.tether.usb/var/dnsmasq.pid");
}
if (file_exists((char*)"/data/data/android.tether.usb/var/dnsmasq.leases") == 0) {
file_unlink((char*)"/data/data/android.tether.usb/var/dnsmasq.leases");
}
}
void FileStore::open( bool deleteFile )
{
if ( m_msgFile ) fclose( m_msgFile );
if ( m_headerFile ) fclose( m_headerFile );
if ( m_seqNumsFile ) fclose( m_seqNumsFile );
if ( m_sessionFile ) fclose( m_sessionFile );
m_msgFile = 0;
m_headerFile = 0;
m_seqNumsFile = 0;
m_sessionFile = 0;
if ( deleteFile )
{
file_unlink( m_msgFileName.c_str() );
file_unlink( m_headerFileName.c_str() );
file_unlink( m_seqNumsFileName.c_str() );
file_unlink( m_sessionFileName.c_str() );
}
populateCache();
m_msgFile = file_fopen( m_msgFileName.c_str(), "r+" );
if ( !m_msgFile ) m_msgFile = file_fopen( m_msgFileName.c_str(), "w+" );
if ( !m_msgFile ) throw ConfigError( "Could not open body file: " + m_msgFileName );
m_headerFile = file_fopen( m_headerFileName.c_str(), "r+" );
if ( !m_headerFile ) m_headerFile = file_fopen( m_headerFileName.c_str(), "w+" );
if ( !m_headerFile ) throw ConfigError( "Could not open header file: " + m_headerFileName );
m_seqNumsFile = file_fopen( m_seqNumsFileName.c_str(), "r+" );
if ( !m_seqNumsFile ) m_seqNumsFile = file_fopen( m_seqNumsFileName.c_str(), "w+" );
if ( !m_seqNumsFile ) throw ConfigError( "Could not open seqnums file: " + m_seqNumsFileName );
bool setCreationTime = false;
m_sessionFile = file_fopen( m_sessionFileName.c_str(), "r" );
if ( !m_sessionFile ) setCreationTime = true;
else fclose( m_sessionFile );
m_sessionFile = file_fopen( m_sessionFileName.c_str(), "r+" );
if ( !m_sessionFile ) m_sessionFile = file_fopen( m_sessionFileName.c_str(), "w+" );
if ( !m_sessionFile ) throw ConfigError( "Could not open session file" );
if ( setCreationTime ) setSession();
setNextSenderMsgSeqNum( getNextSenderMsgSeqNum() );
setNextTargetMsgSeqNum( getNextTargetMsgSeqNum() );
}
static void dir_remove(struct dir_info *dir)
{
char *path;
/* Remove directory contents */
while (dir->first) {
struct dir_entry_info *entry;
entry = dir->first;
if (entry->type == 'd')
dir_remove(entry->entry.dir);
else if (entry->type == 'f')
file_unlink(entry);
else if (entry->type == 's')
symlink_remove(entry->entry.symlink);
else
CHECK(0); /* Invalid struct dir_entry_info */
}
/* Remove entry from parent directory */
remove_dir_entry(dir->entry);
/* Remove directory itself */
path = dir_path(dir->parent, dir->name);
CHECK(rmdir(path) != -1);
free(dir);
}
int main(int argc, char *argv[]) {
if (argc != 2) {
fprintf(stderr, "Usage: tether <start|stop>\n");
return -1;
}
// Reading config-files
readlanconfig();
// Remove old Logfile
file_unlink((char*)"/data/data/android.tether.usb/var/tether.log");
// Open Logfile
log = fopen ("/data/data/android.tether.usb/var/tether.log","w");
if (strcmp(argv[1],"start") == 0) {
startint();
startipt();
startipfw();
startdnsmasq();
}
else if (strcmp(argv[1],"stop") == 0) {
stopdnsmasq();
stopint();
stopipfw();
stopipt();
}
if (log != NULL) {
fclose (log);
}
return 0;
}
void blockstore_zap(struct config *config) {
char *file;
file = blockstore_get_filename(config);
Warning(LGPFX " removing blockset '%s'.\n", file);
file_unlink(file);
free(file);
}
int disc_cache_bdrom_file(BD_DISC *p, const char *rel_path, const char *cache_path)
{
BD_FILE_H *fp_in;
BD_FILE_H *fp_out;
int64_t got;
size_t size;
if (!cache_path || !cache_path[0]) {
return -1;
}
/* make sure cache directory exists */
if (file_mkdirs(cache_path) < 0) {
return -1;
}
/* plain directory ? */
size = strlen(rel_path);
if (rel_path[size - 1] == '/' || rel_path[size - 1] == '\\') {
return 0;
}
/* input file from BD-ROM */
fp_in = p->pf_file_open_bdrom(p->fs_handle, rel_path);
if (!fp_in) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error caching file %s (does not exist ?)\n", rel_path);
return -1;
}
/* output file in local filesystem */
fp_out = file_open(cache_path, "wb");
if (!fp_out) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error creating cache file %s\n", cache_path);
file_close(fp_in);
return -1;
}
do {
uint8_t buf[16*2048];
got = file_read(fp_in, buf, sizeof(buf));
/* we'll call write(fp, buf, 0) after EOF. It is used to check for errors. */
if (got < 0 || fp_out->write(fp_out, buf, got) != got) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error caching file %s\n", rel_path);
file_close(fp_out);
file_close(fp_in);
(void)file_unlink(cache_path);
return -1;
}
} while (got > 0);
BD_DEBUG(DBG_FILE, "cached %s to %s\n", rel_path, cache_path);
file_close(fp_out);
file_close(fp_in);
return 0;
}
static void file_unlink_file(struct file_info *file)
{
struct dir_entry_info *entry;
entry = pick_entry(file);
if (!entry)
return;
file_unlink(entry);
}
void
cache_delete (const char *filename)
{
char *cache_name;
cache_name = cache_get_nautilus_cache_name (filename);
file_unlink (cache_name);
g_free (cache_name);
}
int netmatch_filter_ctor(struct netmatch_filter *netmatch, char const *libname)
{
netmatch->libname = objalloc_strdup(libname);
if (! netmatch->libname) {
goto err0;
}
netmatch->handle = lt_dlopen(libname);
if (! netmatch->handle) {
SLOG(LOG_CRIT, "Cannot load netmatch shared object %s: %s", libname, lt_dlerror());
goto err1;
}
(void)file_unlink(libname);
netmatch->match_fun = lt_dlsym(netmatch->handle, "match");
if (! netmatch->match_fun) {
SLOG(LOG_CRIT, "Cannot find match function in netmatch shared object %s", libname);
goto err2;
}
unsigned const *nb_regs_ptr = lt_dlsym(netmatch->handle, "nb_registers");
if (! nb_regs_ptr) {
SLOG(LOG_CRIT, "Cannot find nb_registers symbol in netmatch shared object %s", libname);
goto err2;
}
netmatch->nb_registers = *nb_regs_ptr;
if (netmatch->nb_registers > 0) {
netmatch->regfile = objalloc_nice(netmatch->nb_registers * sizeof(*netmatch->regfile), "netmatches");
if (! netmatch->regfile) goto err3;
memset(netmatch->regfile, 0, netmatch->nb_registers * sizeof(*netmatch->regfile));
} else {
netmatch->regfile = NULL;
}
return 0;
err3:
if (netmatch->regfile) {
objfree(netmatch->regfile);
netmatch->regfile = NULL;
}
err2:
if (netmatch->handle) {
(void)lt_dlclose(netmatch->handle);
netmatch->handle = NULL;
}
err1:
if (netmatch->libname) {
objfree(netmatch->libname);
netmatch->libname = NULL;
}
err0:
return -1;
}
static void file_delete(struct file_info *file)
{
struct dir_entry_info *entry = file->links;
file_close_all(file);
while (entry) {
struct dir_entry_info *next = entry->next_link;
file_unlink(entry);
entry = next;
}
}
static gboolean
process_files_cb (gpointer data)
{
NautilusCacheRemoveData *ncrd = data;
GList *scan = ncrd->scan;
int i = 0;
if (ncrd->process_timeout != 0) {
g_source_remove (ncrd->process_timeout);
ncrd->process_timeout = 0;
}
if ((ncrd->scan == NULL) || ncrd->interrupted) {
process__final_step (ncrd);
return FALSE;
}
g_free (ncrd->handle);
ncrd->handle = NULL;
for (; scan && i < PROCESS_MAX_FILES; scan = scan->next, i++) {
FileData *fd = scan->data;
char *rc_file = fd->path;
char *real_file;
real_file = get_real_name_from_nautilus_cache (rc_file);
if (real_file == NULL)
continue;
if (ncrd->clear_all || ! path_is_file (real_file)) {
if (! file_unlink (rc_file))
g_warning ("Cannot delete %s\n", rc_file);
}
g_free (real_file);
}
ncrd->scan = scan;
ncrd->process_timeout = g_timeout_add (PROCESS_DELAY,
process_files_cb,
ncrd);
return FALSE;
}
int delete_files(char *name)
{
char tmp_name[CCHMAXPATHCOMP];
struct flist_root root;
FILE_COUNT curfile;
flist_init(&root, FCLIM_DELETION, FL_STANDARD);
if(flist_add_files(&root, NULL, name, 1, 0, FETCH_FILES, NULL))
return(1);
for(curfile=0; curfile<root.files; curfile++)
{
flist_retrieve(tmp_name, NULL, &root, curfile);
msg_cprintf(0, M_DELETING, tmp_name);
if(is_directory(tmp_name)?file_rmdir(tmp_name):file_unlink(tmp_name))
msg_cprintf(H_ERR, M_CANT_DELETE, tmp_name);
}
flist_cleanup(&root);
return(0);
}
void
cache_copy (const char *src,
const char *dest)
{
char *cache_src;
time_t dest_mtime = get_file_mtime (dest);
cache_src = cache_get_nautilus_cache_name (src);
if (path_is_file (cache_src)) {
char *cache_dest = cache_get_nautilus_cache_name (dest);
if (path_is_file (cache_dest))
file_unlink (cache_dest);
if (file_copy (cache_src, cache_dest))
set_file_mtime (cache_dest, dest_mtime);
g_free (cache_dest);
}
g_free (cache_src);
}
/* fork and the child executes Settings.Convertor on fname
create temporary file containing stdin when fname == NULL and convert it
passing special option STDOUT to convertor (that is assumed to delete
the temporary file itself)
from_enc, to_enc are encoding names as should be passed to convertor
returns 0 on success, nonzero on failure;
on critical failure (like we cannot fork()) it simply aborts */
int
convert_external(File *file,
const EncaEncoding from_enc)
{
/* special fourth parameter passed to external convertor to instruct it to
send result to stdout */
static const char *STDOUT_CONV = "-";
pid_t pid;
int status;
File *tempfile = NULL;
char *from_name, *target_name;
if (*extern_convertor == '\0') {
fprintf(stderr, "%s: No external convertor defined!\n", program_name);
return ERR_CANNOT;
}
if (options.verbosity_level > 2)
fprintf(stderr, " launching `%s' to convert `%s'\n",
extern_convertor, ffname_r(file->name));
/* Is conversion of stdin requested? */
if (file->name == NULL) {
/* Then we have to copy it to a temporary file. */
tempfile = file_temporary(file->buffer, 0);
if (tempfile == NULL)
return ERR_IOFAIL;
if (copy_and_convert(file, tempfile, NULL) != 0) {
file_unlink(tempfile->name);
file_free(tempfile);
return ERR_IOFAIL;
}
}
/* Construct the charset names before fork() */
from_name = enca_strconcat(enca_charset_name(from_enc.charset,
ENCA_NAME_STYLE_ENCA),
enca_get_surface_name(from_enc.surface,
ENCA_NAME_STYLE_ENCA),
NULL);
if (enca_charset_is_known(options.target_enc.charset)
&& (options.target_enc.surface & ENCA_SURFACE_UNKNOWN) == 0) {
target_name
= enca_strconcat(enca_charset_name(options.target_enc.charset,
ENCA_NAME_STYLE_ENCA),
enca_get_surface_name(options.target_enc.surface,
ENCA_NAME_STYLE_ENCA),
NULL);
}
else
target_name = enca_strdup(options.target_enc_str);
/* Fork. */
pid = vfork();
if (pid == 0) {
/* Child. */
if (tempfile)
execlp(extern_convertor, extern_convertor,
from_name, target_name, tempfile->name,
STDOUT_CONV, NULL);
else
execlp(extern_convertor, extern_convertor,
from_name, target_name, file->name, NULL);
exit(ERR_EXEC);
}
/* Parent. */
if (pid == -1) {
fprintf(stderr, "%s: Cannot fork() to execute convertor: %s\n",
program_name,
strerror(errno));
exit(EXIT_TROUBLE);
}
/* Wait until the child returns. */
if (waitpid(pid, &status, 0) == -1) {
/* Error. */
fprintf(stderr, "%s: wait_pid() error while waiting for convertor: %s\n",
program_name,
strerror(errno));
exit(EXIT_TROUBLE);
}
if (!WIFEXITED(status)) {
/* Child exited abnormally. */
fprintf(stderr, "%s: Child convertor process has been murdered.\n",
program_name);
exit(EXIT_TROUBLE);
}
enca_free(from_name);
enca_free(target_name);
if (tempfile) {
unlink(tempfile->name);
file_free(tempfile);
}
/* Child exited normally, test exit status. */
if (WEXITSTATUS(status) != EXIT_SUCCESS) {
/* This means child was unable to execute convertor or convertor failed. */
fprintf(stderr, "%s: External convertor failed (error code %d)\n",
program_name,
WEXITSTATUS(status));
if (WEXITSTATUS(status) == ERR_EXEC)
return ERR_EXEC;
else
return ERR_CANNOT;
}
/* Success! Wow! */
return ERR_OK;
}
inline bool file_unlink(const std::string& a_path) { return file_unlink(a_path.c_str()); }
int main(int argc, char **argv)
{
if(argc == 1)
{
usage();
exit(1);
}
while((cret = getopt(argc,argv,"bwetvf:s:l:u: ")) != EOF) {
switch(cret) {
case 'f': /* Force factor */
x=atoi(optarg);
if(x < 0)
x=1;
break;
case 's': /* Size of files */
sz=atoi(optarg);
if(optarg[strlen(optarg)-1]=='k' ||
optarg[strlen(optarg)-1]=='K') {
sz = (1024 * atoi(optarg));
}
if(optarg[strlen(optarg)-1]=='m' ||
optarg[strlen(optarg)-1]=='M') {
sz = (1024 * 1024 * atoi(optarg));
}
if(sz < 0)
sz=1;
break;
case 'l': /* lower force value */
lower=atoi(optarg);
range=1;
if(lower < 0)
lower=1;
break;
case 'v': /* version */
splash();
exit(0);
break;
case 'u': /* upper force value */
upper=atoi(optarg);
range=1;
if(upper < 0)
upper=1;
break;
case 't': /* verbose */
verbose=1;
break;
case 'e': /* Excel */
excel=1;
break;
case 'b': /* Best */
best=1;
break;
case 'w': /* Worst */
worst=1;
break;
}
}
mbuffer=(char *)malloc(sz);
memset(mbuffer,'a',sz);
if(!excel)
printf("\nFileop: File size is %d, Output is in Ops/sec. (A=Avg, B=Best, W=Worst)\n",sz);
if(!verbose)
{
#ifdef Windows
printf(" . %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %12s\n",
"mkdir","rmdir","create","read","write","close","stat",
"access","chmod","readdir","delete"," Total_files");
#else
printf(" . %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %12s\n",
"mkdir","rmdir","create","read","write","close","stat",
"access","chmod","readdir","link ","unlink","delete",
" Total_files");
#endif
}
if(x==0)
x=1;
if(range==0)
lower=upper=x;
for(i=lower; i<=upper; i++)
{
clear_stats();
x=i;
/*
* Dir Create test
*/
dir_create(x);
if(verbose)
{
printf("mkdir: Dirs = %9lld ",stats[_STAT_DIR_CREATE].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_DIR_CREATE].total_time);
printf(" Avg mkdir(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_DIR_CREATE].counter/stats[_STAT_DIR_CREATE].total_time,
stats[_STAT_DIR_CREATE].total_time/stats[_STAT_DIR_CREATE].counter);
printf(" Best mkdir(s)/sec = %12.2f (%12.9f seconds/op)\n",1/stats[_STAT_DIR_CREATE].best,stats[_STAT_DIR_CREATE].best);
printf(" Worst mkdir(s)/sec = %12.2f (%12.9f seconds/op)\n\n",1/stats[_STAT_DIR_CREATE].worst,stats[_STAT_DIR_CREATE].worst);
}
/*
* Dir delete test
*/
dir_delete(x);
if(verbose)
{
printf("rmdir: Dirs = %9lld ",stats[_STAT_DIR_DELETE].counter);
printf("Total Time = %12.9f seconds\n",stats[_STAT_DIR_DELETE].total_time);
printf(" Avg rmdir(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_DIR_DELETE].counter/stats[_STAT_DIR_DELETE].total_time,
stats[_STAT_DIR_DELETE].total_time/stats[_STAT_DIR_DELETE].counter);
printf(" Best rmdir(s)/sec = %12.2f (%12.9f seconds/op)\n",1/stats[_STAT_DIR_DELETE].best,stats[_STAT_DIR_DELETE].best);
printf(" Worst rmdir(s)/sec = %12.2f (%12.9f seconds/op)\n\n",1/stats[_STAT_DIR_DELETE].worst,stats[_STAT_DIR_DELETE].worst);
}
/*
* Create test
*/
file_create(x);
if(verbose)
{
printf("create: Files = %9lld ",stats[_STAT_CREATE].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_CREATE].total_time);
printf(" Avg create(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_CREATE].counter/stats[_STAT_CREATE].total_time,
stats[_STAT_CREATE].total_time/stats[_STAT_CREATE].counter);
printf(" Best create(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_CREATE].best,stats[_STAT_CREATE].best);
printf(" Worst create(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_CREATE].worst,stats[_STAT_CREATE].worst);
printf("write: Files = %9lld ",stats[_STAT_WRITE].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_WRITE].total_time);
printf(" Avg write(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_WRITE].counter/stats[_STAT_WRITE].total_time,
stats[_STAT_WRITE].total_time/stats[_STAT_WRITE].counter);
printf(" Best write(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_WRITE].best,stats[_STAT_WRITE].best);
printf(" Worst write(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_WRITE].worst,stats[_STAT_WRITE].worst);
printf("close: Files = %9lld ",stats[_STAT_CLOSE].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_CLOSE].total_time);
printf(" Avg close(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_CLOSE].counter/stats[_STAT_CLOSE].total_time,
stats[_STAT_CLOSE].total_time/stats[_STAT_CLOSE].counter);
printf(" Best close(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_CLOSE].best,stats[_STAT_CLOSE].best);
printf(" Worst close(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_CLOSE].worst,stats[_STAT_CLOSE].worst);
}
/*
* Stat test
*/
file_stat(x);
if(verbose)
{
printf("stat: Files = %9lld ",stats[_STAT_STAT].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_STAT].total_time);
printf(" Avg stat(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_STAT].counter/stats[_STAT_STAT].total_time,
stats[_STAT_STAT].total_time/stats[_STAT_STAT].counter);
printf(" Best stat(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_STAT].best,stats[_STAT_STAT].best);
printf(" Worst stat(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_STAT].worst,stats[_STAT_STAT].worst);
}
/*
* Read test
*/
file_read(x);
if(verbose)
{
printf("read: Files = %9lld ",stats[_STAT_READ].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_READ].total_time);
printf(" Avg read(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_READ].counter/stats[_STAT_READ].total_time,
stats[_STAT_READ].total_time/stats[_STAT_READ].counter);
printf(" Best read(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_READ].best,stats[_STAT_READ].best);
printf(" Worst read(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_READ].worst,stats[_STAT_READ].worst);
}
/*
* Access test
*/
file_access(x);
if(verbose)
{
printf("access: Files = %9lld ",stats[_STAT_ACCESS].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_ACCESS].total_time);
printf(" Avg access(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_ACCESS].counter/stats[_STAT_ACCESS].total_time,
stats[_STAT_ACCESS].total_time/stats[_STAT_ACCESS].counter);
printf(" Best access(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_ACCESS].best,stats[_STAT_ACCESS].best);
printf(" Worst access(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_ACCESS].worst,stats[_STAT_ACCESS].worst);
}
/*
* Chmod test
*/
file_chmod(x);
if(verbose)
{
printf("chmod: Files = %9lld ",stats[_STAT_CHMOD].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_CHMOD].total_time);
printf(" Avg chmod(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_CHMOD].counter/stats[_STAT_CHMOD].total_time,
stats[_STAT_CHMOD].total_time/stats[_STAT_CHMOD].counter);
printf(" Best chmod(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_CHMOD].best,stats[_STAT_CHMOD].best);
printf(" Worst chmod(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_CHMOD].worst,stats[_STAT_CHMOD].worst);
}
/*
* readdir test
*/
file_readdir(x);
if(verbose)
{
printf("readdir: Files = %9lld ",stats[_STAT_READDIR].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_READDIR].total_time);
printf(" Avg readdir(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_READDIR].counter/stats[_STAT_READDIR].total_time,
stats[_STAT_READDIR].total_time/stats[_STAT_READDIR].counter);
printf(" Best readdir(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_READDIR].best,stats[_STAT_READDIR].best);
printf(" Worst readdir(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_READDIR].worst,stats[_STAT_READDIR].worst);
}
#if !defined(Windows)
/*
* link test
*/
file_link(x);
if(verbose)
{
printf("link: Files = %9lld ",stats[_STAT_LINK].counter);
printf("Total Time = %12.9f seconds\n",stats[_STAT_LINK].total_time);
printf(" Avg link(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_LINK].counter/stats[_STAT_LINK].total_time,
stats[_STAT_LINK].total_time/stats[_STAT_LINK].counter);
printf(" Best link(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_LINK].best,stats[_STAT_LINK].best);
printf(" Worst link(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_LINK].worst,stats[_STAT_LINK].worst);
}
/*
* unlink test
*/
file_unlink(x);
if(verbose)
{
printf("unlink: Files = %9lld ",stats[_STAT_UNLINK].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_UNLINK].total_time);
printf(" Avg unlink(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_UNLINK].counter/stats[_STAT_UNLINK].total_time,
stats[_STAT_UNLINK].total_time/stats[_STAT_UNLINK].counter);
printf(" Best unlink(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_UNLINK].best,stats[_STAT_UNLINK].best);
printf(" Worst unlink(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_UNLINK].worst,stats[_STAT_UNLINK].worst);
}
#endif
/*
* Delete test
*/
file_delete(x);
if(verbose)
{
printf("delete: Files = %9lld ",stats[_STAT_DELETE].counter);
printf("Total Time = %12.9f seconds\n", stats[_STAT_DELETE].total_time);
printf(" Avg delete(s)/sec = %12.2f (%12.9f seconds/op)\n",
stats[_STAT_DELETE].counter/stats[_STAT_DELETE].total_time,
stats[_STAT_DELETE].total_time/stats[_STAT_DELETE].counter);
printf(" Best delete(s)/sec = %12.2f (%12.9f seconds/op)\n",
1/stats[_STAT_DELETE].best,stats[_STAT_DELETE].best);
printf(" Worst delete(s)/sec = %12.2f (%12.9f seconds/op)\n\n",
1/stats[_STAT_DELETE].worst,stats[_STAT_DELETE].worst);
}
if(!verbose)
{
printf("%c %4d %6.0f ",'A',x,stats[_STAT_DIR_CREATE].counter/stats[_STAT_DIR_CREATE].total_time);
printf("%6.0f ",stats[_STAT_DIR_DELETE].counter/stats[_STAT_DIR_DELETE].total_time);
printf("%6.0f ",stats[_STAT_CREATE].counter/stats[_STAT_CREATE].total_time);
printf("%6.0f ",stats[_STAT_READ].counter/stats[_STAT_READ].total_time);
printf("%6.0f ",stats[_STAT_WRITE].counter/stats[_STAT_WRITE].total_time);
printf("%6.0f ",stats[_STAT_CLOSE].counter/stats[_STAT_CLOSE].total_time);
printf("%6.0f ",stats[_STAT_STAT].counter/stats[_STAT_STAT].total_time);
printf("%6.0f ",stats[_STAT_ACCESS].counter/stats[_STAT_ACCESS].total_time);
printf("%6.0f ",stats[_STAT_CHMOD].counter/stats[_STAT_CHMOD].total_time);
printf("%6.0f ",stats[_STAT_READDIR].counter/stats[_STAT_READDIR].total_time);
#ifndef Windows
printf("%6.0f ",stats[_STAT_LINK].counter/stats[_STAT_LINK].total_time);
printf("%6.0f ",stats[_STAT_UNLINK].counter/stats[_STAT_UNLINK].total_time);
#endif
printf("%6.0f ",stats[_STAT_DELETE].counter/stats[_STAT_DELETE].total_time);
printf("%12d ",x*x*x);
printf("\n");
fflush(stdout);
if(best)
{
printf("%c %4d %6.0f ",'B',x, 1/stats[_STAT_DIR_CREATE].best);
printf("%6.0f ",1/stats[_STAT_DIR_DELETE].best);
printf("%6.0f ",1/stats[_STAT_CREATE].best);
printf("%6.0f ",1/stats[_STAT_READ].best);
printf("%6.0f ",1/stats[_STAT_WRITE].best);
printf("%6.0f ",1/stats[_STAT_CLOSE].best);
printf("%6.0f ",1/stats[_STAT_STAT].best);
printf("%6.0f ",1/stats[_STAT_ACCESS].best);
printf("%6.0f ",1/stats[_STAT_CHMOD].best);
printf("%6.0f ",1/stats[_STAT_READDIR].best);
#ifndef Windows
printf("%6.0f ",1/stats[_STAT_LINK].best);
printf("%6.0f ",1/stats[_STAT_UNLINK].best);
#endif
printf("%6.0f ",1/stats[_STAT_DELETE].best);
printf("%12d ",x*x*x);
printf("\n");
fflush(stdout);
}
if(worst)
{
printf("%c %4d %6.0f ",'W',x, 1/stats[_STAT_DIR_CREATE].worst);
printf("%6.0f ",1/stats[_STAT_DIR_DELETE].worst);
printf("%6.0f ",1/stats[_STAT_CREATE].worst);
printf("%6.0f ",1/stats[_STAT_READ].worst);
printf("%6.0f ",1/stats[_STAT_WRITE].worst);
printf("%6.0f ",1/stats[_STAT_CLOSE].worst);
printf("%6.0f ",1/stats[_STAT_STAT].worst);
printf("%6.0f ",1/stats[_STAT_ACCESS].worst);
printf("%6.0f ",1/stats[_STAT_CHMOD].worst);
printf("%6.0f ",1/stats[_STAT_READDIR].worst);
#ifndef Windows
printf("%6.0f ",1/stats[_STAT_LINK].worst);
printf("%6.0f ",1/stats[_STAT_UNLINK].worst);
#endif
printf("%6.0f ",1/stats[_STAT_DELETE].worst);
printf("%12d ",x*x*x);
printf("\n");
fflush(stdout);
}
}
}
return(0);
}
asmlinkage long xcrypt(void *arg)
{
if (arg == NULL) {
printk("User level argument is NULL\n");
return -EINVAL;
} else {
struct myargs *arguments;
int result, paddedresult, padvalue, preambleWritten, temp, paddingWritten, paddingRead;
struct file *filp=NULL, *filp1=NULL;
struct dentry *dentry=NULL, *olddentry=NULL, *newdentry=NULL;
long int inputFileLen=-1, outputFileLen=-1, keyLen=-1;
char *srcbuffer, *destbuffer, *padding, *keyFromFile=NULL, *md5_hash=NULL, *tempOutFile;
umode_t inputFileMode, outputFileMode;
bool outFileCreated=false, renamed=false, success = false;
int err=0;
arguments = (struct myargs *)kmalloc(sizeof(struct myargs), GFP_KERNEL);
if (arguments==NULL) {
printk("Failed to allocate kernel memory\n");
err = -ENOMEM;
goto out1;
}
result = copy_from_user((void *)arguments, arg, sizeof(struct myargs));
if(result!=0) {
printk("Copying from user failed\n");
err = -EFAULT;
goto out2;
}
if (((struct myargs*)arg)->inputFile == NULL) { /*Checking whether user passed NULL input File*/
printk("user level input file argument is NULL\n");
err = -EINVAL;
goto out2;
}
inputFileLen = strnlen_user(((struct myargs*)arg)->inputFile, 32767); //TODO get the maximum value from getname
if (inputFileLen == -1) {
printk("Finding User inputFile string length Failed\n");
err = -EFAULT;
goto out2;
}
arguments->inputFile = (char *)kmalloc(inputFileLen*sizeof(char), GFP_KERNEL);
if ((arguments->inputFile)==NULL) {
printk("Failed to allocate kernel memory for input file\n");
err = -ENOMEM;
goto out2;
}
result = strncpy_from_user(arguments->inputFile, ((struct myargs*)arg)->inputFile, inputFileLen);
if(result!=(inputFileLen-1)) {
printk("Copying input file string from user failed\n");
err = -EFAULT;
goto out3;
}
if((arguments->inputFile)==NULL) {
printk("Copying input file string from user failed\n");
err = -EFAULT;
goto out3;
}
if (((struct myargs*)arg)->outputFile == NULL) {
printk("user level output file argument is NULL\n");
err = -EINVAL;
goto out3;
}
outputFileLen = strnlen_user(((struct myargs*)arg)->outputFile, 32767); //TODO get the maximum value from getname
if (outputFileLen == -1) {
printk("Finding User outputFile string length Failed\n");
err = -EFAULT;
goto out3;
}
arguments->outputFile = (char *)kmalloc(outputFileLen*sizeof(char), GFP_KERNEL);
if ((arguments->outputFile)==NULL) {
printk("Failed to allocate kernel memory for outputfile\n");
err = -ENOMEM;
goto out3;
}
result = strncpy_from_user(arguments->outputFile, ((struct myargs*)arg)->outputFile, outputFileLen);
if(result!=(outputFileLen-1)) {
printk("Copying output file string from user failed\n");
err = -EFAULT;
goto out4;
}
if((arguments->outputFile)==NULL) {
printk("Copying output file string from user failed\n");
err = -EFAULT;
goto out4;
}
if (((struct myargs*)arg)->keyBuf == NULL) {
printk("user level key buffer argument is NULL\n");
err = -EINVAL;
goto out4;
}
keyLen = strnlen_user(((struct myargs*)arg)->keyBuf, 32767); //TODO get the maximum value from getname
if (keyLen == -1) {
printk("Finding User keyBuf string length Failed\n");
err = -EFAULT;
goto out4;
}
arguments->keyBuf = (char *)kmalloc(keyLen*sizeof(char), GFP_KERNEL);
if ((arguments->keyBuf)==NULL) {
printk("Failed to allocate kernel memory\n");
err = -ENOMEM;
goto out4;
}
result = strncpy_from_user(arguments->keyBuf, ((struct myargs*)arg)->keyBuf, keyLen);
if(result!=(keyLen-1)) {
printk("Copying key buf string from user failed\n");
err = -EFAULT;
goto out5;
}
if((arguments->keyBuf)==NULL) {
printk("Copying key buf string from user failed\n");
err = -EFAULT;
goto out5;
}
if (strlen(arguments->keyBuf) != arguments->keyLen) {
printk("User key buffer length and kernel key buffer lengths differ\n");
err = -EINVAL;
goto out5;
}
if((arguments->flags)!=0 && (arguments->flags)!=1) {
printk("Invalid values for flag argument, it should be either 1 or 0\n");
err = -EINVAL;
goto out5;
}
srcbuffer = (char *)kmalloc((PAGE_SIZE+1)*sizeof(char), GFP_KERNEL);
if (srcbuffer==NULL) {
printk("Failed to allocate kernel memory for srcbuffer\n");
err = -ENOMEM;
goto out5;
}
destbuffer = (char *)kmalloc((PAGE_SIZE+1)*sizeof(char), GFP_KERNEL);
if (destbuffer==NULL) {
printk("Failed to allocate kernel memory for destbuffer\n");
err = -ENOMEM;
goto out6;
}
padding = (char *)kmalloc(4*sizeof(char), GFP_KERNEL);
if (padding==NULL) {
printk("Failed to allocate kernel memory for padding\n");
err = -ENOMEM;
goto out7;
}
initialisePadding(padding); /*Initialising the padding array to all 0's */
result=PAGE_SIZE;
filp = filp_open(arguments->inputFile, O_RDONLY, 0);
if (PTR_ERR(filp)==-ENOENT) {
printk("Input File doesnot exists\n");
err = -ENOENT;
goto out8;
} else {
printk("Input File exists\n");
}
if (!filp || IS_ERR(filp)) {
printk("Read error for input file %d\n", (int) PTR_ERR(filp));
err = PTR_ERR(filp);
goto out8;
}
inputFileMode = filp->f_inode->i_mode;
if(!S_ISREG(inputFileMode)) {
printk("Input File is not a regular file\n");
err = -EISDIR;
goto out9;
}
if (!filp->f_op->read) {
printk("Error in reading input file\n");
err = PTR_ERR(filp);
goto out9;
}
filp1 = filp_open(arguments->outputFile, O_WRONLY, 0);
if (PTR_ERR(filp1)==-ENOENT) {
printk("Output File doesnot exists, creating it\n");
filp1 = filp_open(arguments->outputFile, O_CREAT, inputFileMode); /*Creating output file if it doesnot exists with input file permissions*/
if(!filp1 || IS_ERR(filp1)) {
printk("Error in creating output file\n");
err = PTR_ERR(filp1);
goto out8_1;
} else {
printk("Output File created succesfully\n");
outFileCreated = true;
}
} else {
printk("Output File exists\n");
}
if(!outFileCreated) {
if(!filp1 || IS_ERR(filp1)) {
printk("Error in opening output file\n");
err = PTR_ERR(filp1);
goto out8_1;
}
}
if(!outFileCreated) {
outputFileMode = filp1->f_inode->i_mode;
if(!S_ISREG(outputFileMode)) {
printk("Output File is not a regular file\n");
err = -EISDIR;
goto out9;
}
}
if(!outFileCreated) {
if (filp->f_inode->i_ino == filp1->f_inode->i_ino) {
printk("Both input and output files are same, they should be different\n");
err = -EPERM;
goto out9;
}
}
if(!outFileCreated) {
olddentry = filp1->f_path.dentry;
filp_close(filp1, NULL);
tempOutFile = (char *)kmalloc((strlen(arguments->outputFile)+5)*sizeof(char), GFP_KERNEL);
strncpy(tempOutFile, arguments->outputFile, strlen(arguments->outputFile));
strcat(tempOutFile, ".tmp");
tempOutFile[(strlen(arguments->outputFile)+5)]='\0';
filp1 = filp_open(tempOutFile, O_WRONLY, 0);
if (PTR_ERR(filp1)==-ENOENT || IS_ERR(filp1)) {
printk("temp Output File doesnot exists, creating it\n");
} else {
printk("temp output File exists, truncating and creating new one\n");
dentry = filp1->f_path.dentry;
filp_close(filp1, NULL);
err = file_unlink(dentry->d_parent->d_inode, dentry);
if(err != 0) {
printk("unlink of already existing temporary file failed\n");
err = -EBUSY;
goto out9;
}
printk("unlink function returned : %d\n", err);
}
filp1 = filp_open(tempOutFile, O_CREAT, outputFileMode);
if(!filp1 || IS_ERR(filp1)) {
printk("Error in creating temp output file\n");
err = PTR_ERR(filp1);
goto out8_1;
} else {
printk("temp output File created succesfully\n");
}
}
newdentry = filp1->f_path.dentry;
if (!filp1 || IS_ERR(filp1)) {
printk("Write error for output file %d\n", (int) PTR_ERR(filp1));
err = PTR_ERR(filp1);
goto out10;
}
if (!filp1->f_op->write) {
printk("Error in writing to temp output file\n");
err = PTR_ERR(filp1);
goto out10;
}
md5_hash = kmalloc(17*sizeof(char), GFP_KERNEL);
if (md5_hash==NULL) {
printk("Failed to allocate kernel memory for key from file\n");
err = -ENOMEM;
goto out10;
}
err = generate_md5(arguments->keyBuf, md5_hash, strlen(arguments->keyBuf));
if(err != 0) {
printk("kernel MD5 generation failed\n");
goto out11;
}
md5_hash[strlen(arguments->keyBuf)] = '\0';
if (arguments->flags) { //ENCRYPTION
preambleWritten = wrapfs_write_file(filp1, (void *)(md5_hash), strlen(md5_hash)); /*Writing Key hash to the file*/
if(preambleWritten < 0) {
printk("Writing preamble failed\n");
err = -EFAULT;
goto out11;
}
paddingWritten = wrapfs_write_file(filp1, (void *)(padding), 4); /*Writing Inital Padding to the file*/
if (paddingWritten < 0) {
printk("Writing padding failed\n");
err = -EFAULT;
goto out11;
}
while(result==PAGE_SIZE) {
result = wrapfs_read_file(filp, (void *)srcbuffer, PAGE_SIZE);
if(result < 0) {
printk("Reading from input file failed\n");
err = -EFAULT;
goto out11;
}
err = encrypt_Cipher(arguments->keyBuf, srcbuffer, destbuffer, result, &paddedresult);
if (err < 0) {
printk("Error occured while encrypting\n");
goto out11;
}
if(paddedresult!=result) {
padvalue = paddedresult - result;
buildPadding(padding, padvalue);
result = paddedresult;
}
result = wrapfs_write_file(filp1, (void *)destbuffer, result);
if (result < 0) {
printk("Writing to output file failed\n");
err = -EFAULT;
goto out11;
}
}
paddingWritten = wrapfs_write_file_pos(filp1, (void *)padding, 4, preambleWritten);
if (paddingWritten < 0) {
printk("Writing padding failed\n");
err = -EFAULT;
goto out11;
}
} else { //DECRYPTION
keyFromFile = kmalloc(16*sizeof(char), GFP_KERNEL);
if (keyFromFile==NULL) {
printk("Failed to allocate kernel memory for key from file\n");
err = -ENOMEM;
goto out11;
}
temp = wrapfs_read_file(filp, (void *)keyFromFile, strlen(md5_hash));
if (temp != strlen(md5_hash)) {
printk("reading key from file failed\n");
err = -EFAULT;
goto out12;
}
if (compareKeys(md5_hash, keyFromFile, temp)) {
printk("Both Keys Match\n");
} else {
printk("Both keys doesnot match\n");
err = -EINVAL; //TODO : Return proper error Value.
goto out12;
}
paddingRead = wrapfs_read_file(filp, (void *)padding, 4);
if(paddingRead < 0) {
printk("Reading padding failed\n");
err = -EFAULT;
goto out12;
}
padvalue = reconstructPadding(padding);
if (padvalue < 0) {
printk("Reconstructing padding value failed(negative value not acceptable)\n");
err = -EFAULT;
goto out12;
}
printk("Pad value returned : %d\n", padvalue);
while(result==PAGE_SIZE) {
result = wrapfs_read_file(filp, (void *)srcbuffer, PAGE_SIZE);
if (result < 0) {
printk("Reading from input file failed\n");
err = -EFAULT;
goto out12;
}
printk("result read from file : %u\n", result);
err = decrypt_Cipher(arguments->keyBuf, srcbuffer, destbuffer, result);
if (err < 0) {
printk("Error occured while encrypting\n");
goto out12;
}
if (result<PAGE_SIZE) {
result = result - padvalue;
}
result = wrapfs_write_file(filp1, (void *)destbuffer, result);
if(result < 0) {
printk("writing to output file failed\n");
err = -EFAULT; //TODO goto
goto out12;
}
}
}
if(!outFileCreated) {
err = file_rename(newdentry->d_parent->d_inode, newdentry, olddentry->d_parent->d_inode, olddentry);
if(err!=0) {
printk("renaming of tempfile to output file failed\n");
err = -EBUSY;
goto out12;
} else
renamed = true;
} else
success = true;
out12:
if(keyFromFile)
kfree(keyFromFile);
out11:
kfree(md5_hash);
out10:
if(filp1)
filp_close(filp1, NULL);
if((!renamed && !outFileCreated)||(!success && outFileCreated))
file_unlink(newdentry->d_parent->d_inode, newdentry);
out9:
if(filp1)
filp_close(filp1, NULL);
out8_1:
if(filp)
filp_close(filp, NULL);
out8:
kfree(padding);
out7:
kfree(destbuffer);
out6:
kfree(srcbuffer);
out5:
kfree(arguments->keyBuf);
out4:
kfree(arguments->outputFile);
out3:
kfree(arguments->inputFile);
out2:
kfree(arguments);
out1:
return err;
}
}
